Fedora 36 update for golang



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-33194
CVE-2021-29923
CWE-ID CWE-835
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

golang
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Infinite loop

EUVDB-ID: #VU65693

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-33194

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop. A remote attacker can pass crafted ParseFragment  input to the application, consume all available system resources and cause denial of service conditions.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 36

golang: before 1.18~rc1-2.fc36

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2022-17d004ed71


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Input validation error

EUVDB-ID: #VU56829

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-29923

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of user-supplied input in net.ParseIP and net.ParseCIDR, as the Go interpreter does not properly consider extraneous zero characters at the beginning of an IP address octet. A remote attacker can bypass access control that is based on IP addresses, because of unexpected octal interpretation.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 36

golang: before 1.18~rc1-2.fc36

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2022-17d004ed71


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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